Function resize 

pub fn resize(
    photon_img: &PhotonImage,
    width: u32,
    height: u32,
    sampling_filter: SamplingFilter,
) -> PhotonImage

Resize an image.

Arguments

• img - A PhotonImage.
• width - New width.
• height - New height.
• sampling_filter - Nearest = 1, Triangle = 2, CatmullRom = 3, Gaussian = 4, Lanczos3 = 5